2017.06.19 FwdMan2.8.17.docx 7-51
7. Connecting the Electronics
7.1 Connecting Transducers/Cables
When the FWD/HWD equipment has been installed as described in section 2, “Tow Vehicle
Installation”, then connection of the Electronics (the Compact15 System Controller and the
Computer) should be performed as outlined in the step-by-step procedure below.
Perhaps also refer to Section 14, “The Compact15 System Controller”.
The cables from the transducers (i.e. from the Load Cell and from the Deflectors) should be
connected to sockets of the Compact15 Front Panel. The 12V power supply for the
Comapct15 should be connected to the power socket at the bottom panel. Refer to the step-by-
step procedure in the following.
If necessary, use an anti-oxidizing, silicone based spray (like that used for moisture protection
of vehicle ignition systems, such as e.g. “WD40”) to clean plugs and sockets and to protect
them from condensing moisture and corrosion.
1. MAKE SURE that the Compact15 has been switched off, when any cable is connected
or disconnected.
2. Connect the (black, plastic) female plug of the Compact15 Power Cable to the mating
socket on the System Controller bottom panel. Make sure that the plug is inserted
STRAIGHT, and that the lock ring to its end stop.
3. Connect the 5-pin male, bayonet-lock-type DIN plug of the load cell cable (labelled
FWDL) to the LC socket of the Compact15 Front Panel.
4. Place the Deflector with the S/N assigned to Deflection Channel No.1 in the centre
deflection holder in the hollow above the load cell, making sure that the magnet
clamps well to the bottom plate of the holder (the magnet as well as the plate should
be clean before the placing).
5. Connect the bayonet-lock-type DIN plug of the Channel 1 Deflector to the D1 socket
of the Compact15 Front Panel.
6. Place the remaining Deflectors assigned to Deflection Channels No. 2, 3, 4, etc. in the
(movable) holders on the raise/lower bar (see 7.1.2, “Note on Placing the Deflectors”
below). Standard Test Setups imply that the Deflectors are placed in order of
increasing distance from the loading plate with increasing Channel No.
7. Connect the plugs of the Channel 2, 3, 4, etc. deflectors to the appropriate sockets of
the Compact15 Front Panel. See 7.1.3, “Important Notice!!!” below!).
8. Connect the bayonet-lock-type DIN plug of the cable connected to the
hand/emergency brake indicator circuit (or to the PARK indicator circuit) to the
PARK socket on the Remote Control Box. (Refer also to 2.2.4, “Plate-Low Alarm
Connection”).
9. Connect the Computer interfacing and power cables as explained below in 7.2,
“Connecting the Computer”
10. If an (optional) Air Temperature Probe has been supplied, connect the bayonet-lock-
type DIN plug of this to the AIR socket of the Compact15 Front Panel
11. If an (optional) Infrared, non-contact Temperature Sensor has been supplied, connect
the bayonet-lock-type DIN plug of this to the IR socket of the Compact15 Front Panel.
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